Surge Protector ALFA ALR06, coaxial lightning protector with N-female to N-male connectors

ALFA ALR06 is a coaxial surge protector designed to safeguard RF equipment and antenna systems from lightning-induced transients. The device installs inline between coaxial cables using N-female to N-male connectors to maintain a continuous RF path while offering a path to ground for surge currents. Intended for use on antenna feeders, the ALR06 helps reduce the risk of damage to radios, routers and other RF devices by diverting high-voltage spikes away from sensitive circuitry.

Advantages

The ALFA ALR06 provides protection for RF installations without interrupting signal flow, combining mechanical compatibility with N-type connectors and a low-profile design suitable for mast or near-antenna mounting. It is engineered to react to transient overvoltages and route surge energy to ground, reducing the likelihood of direct damage to connected equipment. Installation inline on the feeder keeps impedance characteristics stable and minimizes reflection or insertion loss when used within its intended frequency range.

Suitable for

• Outdoor antenna feeders for radio and wireless systems
• Coaxial connections to routers, modems and RF transceivers
• Amateur radio stations and small commercial base stations
• Sites where lightning protection for antenna lines is required

Key specifications

• Connector type: N-female to N-male coaxial connection
• Application: coaxial surge protection for RF/antenna feeders
• Mounting: inline between coaxial cables; suitable for mast or near-antenna placement
• Function: diverts surge energy to ground while maintaining RF continuity
• Compatibility: designed for use with N-type connector cables and equipment

How to use

Install the ALFA ALR06 inline on the antenna feeder by connecting the N-male side to the outgoing coax and the N-female side to the incoming cable or equipment lead. Ensure the protector's body is properly grounded to a low-impedance earth reference using an appropriate grounding conductor; grounding is essential for effective surge diversion. Place the unit as close as practical to the point where the feeder enters equipment enclosures or at the mast to provide optimal protection for downstream devices. Verify connections are tight and weatherproof any external joints according to site requirements.

Usage recommendations

Use the ALFA ALR06 together with a dedicated grounding system and periodic inspections. Do not rely on the protector as the sole protective measure—combine it with building grounding and upstream lightning protection where applicable. Replace the device if it has experienced a significant surge event or shows signs of corrosion or mechanical damage.